GHS Strings TC-GBXL Thin Core Boomers, Nickel-Plated Electric Guitar Strings, Extra Light (.009-.042) Gauges: (.009-.042) 009 - 011- 016 - LC24 - LC32 - LC42 THIN CORE BOOMERS - Extra Light A looser feel can yield more precise arpeggios, musical bends and more Nickel-Plated Steel Wound over a round core Lightning Fast Action